Carbon-removing means for internal-combustion engines



I 'F. P. HowAnn. CARBON REMOVING MEANS INTERNAL COMBUSTION ENGINES.

APPLICATION FILED FEB. 28| 1920.

Patented NOV. 1, 1921.

m 1Q 25 IIIIIIIIIII N rulli/m" l /ll IN V EN TOR.

A TTORNEY perienced in properly introducing such subj Unire-STATESPATENT GFFICE.

FRANK Il?. IEIIO'W'ABJ)` 0F LISBON, NEW HAMPSHIRE.

CARBON-REMOVING MEANS FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

ieaamaea Nev. 1., i921.

Application led February 28, 1920.` SerialNo. 362,096.

To all whom it may concern:

Be it known that I, FRANK P. HOWARD, a citizen of the United States,residing at Lisbon, in the county of Grafton and State of New Hampshire,have invented certain new and useful Improvements in Carbon-RemovingMeans for Internal-Combustion Engines, of which the following is aspeciication.

This inventionrelates to means for removing the carbon from thecylinders of instances into the cylinders. Attemptsvhave hitherto beenmade to inject cleaning liquids through spark plug openings, or by meansof priming cups, but liquids so introduced are not properly distributed,and do not produce satisfactory results.

Tt is Vthe primary object of the present invention, therefore, toprovide simple, convenient, and eflicient means for eHectivelyintroducing into` an 'engine manifold a suitable hydrocarbon or othersubstance forv cleaning the cylinders.

' A further object is to provide means whereby such :cleaning agent maybe supplied to the manifold in either liquid or i i vapor form, asdesired, the vapor being of'a character either the same as or differentfrom the liquid. 4 V

A still further object is to provide kan improved mechanicalconstruction of vapor forming and liquid delivery apparatus peculiarlyadapted for the above purposes.

With the above and other objects in view, the invention consists in theconstruction, combination and arrangement of parts hereinafter describedand claimed, and illustrated in the accompanying drawing, in whichFigure 1 is a longitudinal vertical section v shown in elevation and aportion of an en-V gine manifold being illustrated inv dotted lines;

Fig. 2 is a side elevation of my improved device, and

Fig. 3 is a front elevation thereof, showing the manner of supplyingliquid thereto.

Referring to the drawings in` detail, my

Vimproved device comprises a container or receptacle 1 preferably madeof metal and shown as rectangular in shape. This container has a bottom2 provided with an annular flange 3 within which snugly fits the upperend of a cup 4 preferably formed of glass. A gasket 5 of rubber or thelike may be employed to insure a tight seal between the upper edgeof thecup 4 and the container 1. Y

The cup 4 is supported by means of a Vsaucer or stirrup 6 in which itrests and the .stirrup is held by means of a strap 7 passing under thesame, the free ends of which are secured to plungers 8 working freely inguide tubes` 9 extending through the container or receptacle 1. Theupper ends of these tubes are preferably closed as by means of removableplugs 10. The upper end of each plunger 8 is provided with an enlargedhead 12, and each'tube 9 carries an inwardly extending annular shoulder13. Between Ythe head 12 and shoulder 13 is a helical spring 11, theyresiliency of which serves to exert a yielding upward pull on the strap7, thus urging the cup 4 against the gasket 5 and holding it firmly inposition, notwithstanding the severe vibration to Vwhich it issubjected.

Extending vertically down through the receptacle 1 is an airinlet tube14 having an enlarged screw threaded portion 15, engaging the top of thereceptacle. Thus tube passes down through the bottom of the receptacleinto the cup 4, its end terminating a short distance above the bottom ofthe cup. The bottom 2 of the receptacle Vis provided with va pluralityof perforations 16, so that the interior of the cup 4 is in freecommunication with the interior of the receptacle. The cup andreceptacle when in use are partially filled with a suitable liquid, suchas kerosene, to a height as indicated for example at m in Fig. 1. Thereceptacle is further provided with a drain cock 17 protecting cap 28being, of course,aremoved.

and a waste or overflow outlet 18. Screw bolts 19 having nuts 20 arealso preferably provided so that the device may be conveniently attachedto the dash board or other part of an automobile.

Surmounting the receptacle 1 is an air dome chamber formed by an annularupstanding flange 21 and an inverted cup or cap 22 snugly tting suchflange. The top wall of the container 1 is provided wit perforations 23affording communication between the interior of the container and thedome or chamber above described.

Carried by the wall of the lair dome or cap 22 is a pipe 24 terminatingon the inside of the cup 22in a beveled end 24. A pi e or tube 25, whichmay be of copper, ru ber or other suitable material, extends from thepipe 24 to the engine manifold 26 at a point between the carbureter andcylinders,U the passage of fluid through such pipe being controlled bymeans of a pet cock 2 5, operated by a pull rod 25? in anyvsuitablemanner. Y

Obviously when this 'pet cock is opened and the engine is running, thesuction created by the engine will cause air to flow down through theltube 14 and bubble up through the liquid.A contained in the receptacle,such bubbles being readily visible through the glass cu 4. This producesa vaporization of the liquid, and thel vapor passes up through theperforations 23 and thence through the pipes 274 and 25 to the enginecylinders, where it assists in cleaning and removin the carbontherefrom. v

Ifit is desired to supply kerosene or other substances in liquid form tothe manifold, the`upper end of the tube 14 is closed by means of a plug14, as shown in Fi 3. A short piece of flexible hose 29 is t en attachedto a nozzle 27 carried by the cap 22 immediately above the kend of pipe24, the

The free endof'the hose 29-is immersed in kerosene or other liquidcontained in a cup 30, which Vmay beheld inthe hand or otherwisesuitably supported. The suction of the engine will, therefore, Icauseliquid l to4 be drawn in through the hose 29 and nozzle 27, from whichit will pass into the pipe 24 and be conveyed tothe manifold.V

This operation of supplying liquid to the engine shouldbe'performe'd,'of course, when the automobile is not in motion, and`whilev p the engine is either running slowly or being cranked. v Y Y Itwill beunderstood that. if it is desired to remove the glass cup 4,'thismay .be accomplished by pulling down on the stirrup 6, and swinging itt0 one side, the springs 11 yielding suliciently to permit the edge ofthe stirrup to clear the bottom of the cup.

It will thus be seen that I have provided a simple and efficient devicewhereby either liquid or vapor may be supplied to an engine manifold asrequired, and thence distributed to the cylinders and it' is thoughtthat the many advanta es of my invention will be readily appreclatedwithout further discussion. f

What I claim is:

1. The combination with a liquid receptacle having, two communicatingcompartments, one partially filled with liquid, and the other having asuction pipe extending therefrom, and provided with a liquid inlet, anair inlet pipe discharging below the level of the liquid in said firstmentioned compartment, andmeans for closing said air inlet pipe s0 as tocause said suction pipe to draw in liquid from another source throughsaid liquid inlet.` y I 2. A hydrocarbon Vapor generator comprising areceptacle partly filledy with liquid hydrocarbon, a suction pipeextending from the upper part of said receptacle, a glass cup fitted inthe bottom of said receptacle and communicating therewith, and an airinlet tube passing down into said receptacle and terminatingin saidlcup, whereby suction through said pipe causes air to iow in through saidtube and bubble up through the liquid, such bubbles being visiblethrough said glass '.cup. i

,3. v hydrocarbon vaporgenerator comprisng a receptacle partly filledwith liquid hydrocarbon, a, suction pipe extending from the upper partof said receptacle, adetach able glass cup fitted to the vbottom of saidreceptacle and communicating therewith, and a stirru-p supporting saidcup.

4. A hydrocarbon vapor generator comprising la receptacle partly filledwith liquid hydrocarbon, a suction pipe vextending from the upper partof said receptacle, a cup fitted in the bottom of said receptacle andcommunicating therewith, a stril'uk in vwhich `said cup rests, and meansfor res iently'supportingl said stirrup so as to lhold said cup inosition. I'

n Vtestimony whereof I aix my signature in presence of two witnesses.

FRANK P; HOWARD.

VVitnessesl:Y

HELEN P. FOSTER, CLARK FROST.

